Noah

Noah is working with Arachne, wearing a plaid hat with a few metal earrings on it and having tattoos on his arms that are really shadows. He and Mosquito are not on good terms, with Mosquito revealing to have always been extremely distrustful of him. So far his main form of attack would be summoning a shadowy worm-like creature from his book, the Book of Eibon. It is revealed he's a mysterious individual who has taken up Eibon's title because of the "brand recognition" it offers. His goal is to use the Book of Eibon to absorb and "collect" everything, which he feels in essence would make him "everything". However it was later reavealed that Noah is an artifical Being created by the Book of Eibon's Index to carry out it's tasks and after The noah of Greed died he was replaced by A new Noah this time representing Wrath.(wikipedia) This is not the same 'Eibon' that appeared in the anime. So far this character has only appeared in the manga and a game entitled "Soul Eater: Monotone Princess".